Door operating system

Abstract

The present invention relates to a door operating system (1) for a door (2), the door (2) comprising: a protective barrier (3) configured to be in a rolled-up open state and configured to cover a door opening (18) in an unfolded closed state; and first tracks (9a, 9b) arranged on side frames (19a, 19b) on both sides of the protective barrier (3). The door operating system (1) comprises: curved or spiral tracks (13a, 13b) arranged on both sides of the protective barrier (3) for accommodating the protective barrier (3) in the rolled-up open state; and at least one drive unit (6) connected to the protective barrier (3) to move the protective barrier (3) from the unfolded closed state to the rolled-up open state and from the rolled-up open state to the rolled-up closed state; wherein the protective barrier (3) comprises a first transmission element (11a, 11b) connected to the at least one drive unit (6) ), wherein the curved or spiral tracks (13a, 13b) each include a second transmission element (14a, 14b), and wherein the first transmission element (11a, 11b) is an Ω-shaped drive unit configured to engage with the second transmission element (14a, 14b) and to move the protective barrier (3) along the second transmission element (14a, 14b) by operating the drive unit (6) so as to move the protective barrier (3) from an unfolded closed state to a reeled open state and vice versa. The invention also relates to a method for replacing a segment (4) of a protective barrier (3) of a door (2).

Description

Technical Field

[0001] The present invention relates to a door operating system for a door. Background Art

[0002] Door operating systems for doors typically include a door connected to a door frame and a drive unit arranged to move the door along the door frame between an open position for opening and closing the opening, and a closed position for closing and opening the opening. Doors are typically used as garage doors or industrial doors. A motor or mechanical unit (such as a spring or support motor) can be used as the drive unit to move the door. Such doors may be referred to as spiral doors or high-speed rolling doors.

[0003] The most common door for exterior applications features a door curtain or protective barrier with rigid panels connected to one another. In the open position, the protective barrier is rolled up on a roller. The roller can have a spiral profile to enable a continuously increasing rolling radius. In the most common type of spiral door, the curtain panels are usually pushed into fixed spiral tracks during the opening process. These tracks are located above the door lintel on both sides of the protective barrier. A lifting device, such as a timing belt, roller chain, or steel cable, is connected to the drive unit. The lifting device is fixed to the bottom panel and pushes the protective barrier upwards.

[0004] US Pat. No. 7,913,739 B2 discloses a spiral door in which a door curtain is pulled in and out on a fixed spiral track. Two telescopic arms fixed to a motor-driven roller are connected to the right-hand and left-hand sides of the top panel curtain for pulling the curtain upward into the spiral track and pushing the curtain downward from the spiral track. Summary of the Invention

[0005] A disadvantage of swing doors with lifting devices fixed to the bottom panel is that they are sensitive to impact. If the bottom panel is damaged, for example by a forklift, the door can no longer be operated. Furthermore, visible rollers are required to drive the lifting devices on both sides of the door. Furthermore, the guide rails must be straight in the closed position.

[0006] Hinged doors with two telescopic arms can be operated even after the door's bottom panel has been damaged and removed. However, when the door is closed, the telescopic arms of such doors are already extended to their maximum length. This requires high torque from the drive unit to initiate the opening process. Consequently, a high-torque drive unit and balancing components are required to operate such doors, which can be cost-intensive. The required high torque can also cause wear on the components of such known hinged doors.

[0007] There is a need to provide a door operating system for a door that seeks to mitigate, alleviate or eliminate one or more of the above-mentioned deficiencies and disadvantages in the art, either singly or in any combination.

[0008] Therefore, there is a need to develop a door operating system with reduced complexity to facilitate installation and reduce maintenance requirements.

[0009] Furthermore, there is a need to develop a door operating system for a door that uses cost-effective components.

[0010] Furthermore, there is a need to develop a door operating system for a door in which the operating forces are as low as possible.

[0011] It is therefore an object of the present disclosure to provide a door operating system that seeks to mitigate, alleviate or eliminate one or more of the above mentioned deficiencies and disadvantages in the art, either singly or in any combination.

[0012] Another object of the present invention is to develop a door operating system with reduced complexity to facilitate installation and reduce maintenance requirements.

[0013] Another object of the present invention is to develop a door operating system for a door that uses cost-effective components.

[0014] A further object of the present invention is to develop a door operating system for a door in which the operating forces are as low as possible.

[0015] In the present disclosure, a solution to the above-mentioned problem is proposed. In the proposed solution, a door operating system for a door is described. The door includes: a protective barrier, which is configured to be in a retracted open state and configured to cover the door opening in an extended closed state; and a first track, which is arranged on the side frames on both sides of the protective barrier. The door operating system includes: curved or spiral tracks, which are arranged on both sides of the protective barrier for accommodating the protective barrier in the retracted open state; and at least one drive unit, which is connected to the protective barrier and is used to move the protective barrier from the extended closed state to the retracted open state and from the retracted open state to the extended closed state, wherein the protective barrier includes a first transmission element connected to the at least one drive unit, wherein the curved or spiral tracks each include a second transmission element, and wherein the first transmission element is an omega drive unit, the omega drive unit is configured to engage with the second transmission element, and by operating the drive unit, the protective barrier is moved along the second transmission element so as to move the protective barrier from the extended closed state to the retracted open state and from the retracted open state to the extended closed state. This door operating system mitigates, alleviates, or eliminates one or more of the aforementioned deficiencies and shortcomings in the art, either individually or in any combination. Furthermore, the complexity of the door operating system is reduced, operating forces are minimized, wear is minimized, and large door opening sizes can be accommodated. The protective barrier can operate in both a retracted opening direction and an extended closing direction. The protective barrier can operate in a vertical or horizontal orientation, or at an angle relative to the vertical. The protective barrier can also follow a curve. When the protective barrier is deployed, the rollers extending between the right-hand and left-hand sides of the protective barrier are not visible. Because the protective barrier moves along a second transmission element, the torque required to initiate the opening process is low. The door protective barrier can move at speeds faster than 0.5 meters per second. The door protective barrier can move at speeds of 2 meters per second or faster. The protective barrier can have a large height and width to cover and close large door opening sizes. The first track and the curved or spiral track can have similar or different configurations and designs. The first track can have a straight extension or an extension that differs from the straight extension. The first track may extend in the same direction as the side frame. The curved or spiral track may extend in the same direction as the side frame or in another direction. The drive unit may be a low-torque drive unit that generates low torque when reeling in and deploying the protective barrier. The drive unit may be a motor, such as an electric motor. The first transmission element and the second transmission element are configured to move the protective barrier at high speed. Arranging the second transmission element at the curved or spiral track provides an operation of pulling the protective barrier when reeling in the protective barrier and an operation of pushing the protective barrier when deploying the protective barrier. The protective barrier is insensitive or less sensitive to collisions.Even in the event of damage from a collision, such as that caused by a forklift, the protective barrier remains operational. The second transmission element, arranged on a curved or spiral track, is protected from water and dirt, potentially increasing the lifespan of the door. In the retracted position, the protective barrier is pulled away from the door opening, allowing access through the door opening. In the deployed position, the protective barrier covers the door opening, preventing access through the door opening.

[0016] According to one aspect, the curved or spiral track has a curved or spiral shape. This curved or spiral shape of the curved or spiral track allows for quick opening and closing of the protective barrier. Furthermore, the second transmission element has a curved or spiral shape because it is arranged on the curved or spiral track. When the protective barrier is in the retracted position, the space required above the door lintel to roll up the protective barrier in a spiral form is minimized. This allows the rolling radius to be continuously reduced as the spiral shape is retracted into the roller. Due to the second transmission element being arranged on the curved or spiral track, the operating forces for deploying and retracting the protective barrier are low. This minimizes wear and allows for a large opening size for the protective barrier and the door opening. When the protective barrier is in the deployed and closed position, the rollers between the right-hand and left-hand sides are not visible.

[0017] According to one aspect, the omega-shaped drive unit is connected to the drive unit via a torque transfer unit. The drive unit is configured to provide torque and rotational motion to the omega-shaped drive unit. The drive unit can be positioned a distance from the omega-shaped drive unit. Thus, the torque transfer unit transfers torque and rotational motion from the drive unit to the omega-shaped drive unit. The drive unit can be positioned outside the area or space between the first track or the curved or spiral track, and the torque transfer unit extends from the drive unit into the area or space between the first track or the curved or spiral track.

[0018] According to one aspect, a gearbox is arranged between the torque transfer unit and the omega-shaped drive unit, the gearbox being configured to distribute torque and rotational motion from the drive unit to the omega-shaped drive unit. The drive unit can be arranged adjacent to and connected to the gearbox. Alternatively, the drive unit can be arranged at a distance from the gearbox and connected to the gearbox via the torque transfer unit. The gearbox can be arranged between the omega-shaped drive units and connected to the omega-shaped drive units via a drive shaft.

[0019] According to one aspect, the torque transmission unit is a telescopic drive shaft. This telescopic drive shaft can compensate for changes in distance and angle between the omega-shaped drive unit and the drive unit during opening and closing of the protective barrier. The telescopic drive shaft can also compensate for changes in distance and angle between the transmission housing and the drive unit during opening and closing of the protective barrier. This telescopic feature can be achieved by a longitudinal coupling unit.

[0020] According to one aspect, the torque transmission unit is a flexible shaft. The flexible shaft can compensate for distance and angle changes between the omega-shaped drive unit and the drive unit during opening and closing of the protective barrier. The flexible shaft can also compensate for distance and angle changes between the transmission housing and the drive unit during reeling and deploying of the protective barrier. The flexible shaft can comprise a bundle of steel wires, or it can comprise a rubber or polymer shaft.

[0021] According to one aspect, the at least one drive unit is disposed in one of the side frames. The side frames can be rigid. The side frames can be disposed outside the area or space between the first rails or the curved or spiraling rails. Therefore, the drive unit can be disposed outside the area or space between the first rails or the curved or spiraling rails. The torque and motion generated by the drive unit can be transmitted to the movable protective barrier via a torque transmission unit.

[0022] According to one aspect, at least one drive unit is located on the protective barrier. This provides for a compact design. The drive unit can be a battery-powered electric motor, also located on the protective barrier. When the protective barrier is rolled up and rolled in, the drive unit follows the movement of the protective barrier. The at least one drive unit can be located at the top of the protective barrier.

[0023] According to one aspect, the omega-shaped drive unit includes a sprocket, and the second transmission element is a chain. Together, the sprocket and chain can transmit significant torque and force. They can also transmit high speeds. This transmission is also reliable and requires minimal maintenance. It is also compact and requires minimal space. The chain can also follow a curved or spiral shape.

[0024] According to one aspect, the Ω-shaped drive unit includes a toothed pulley, and the second transmission element is a timing belt. Together, the toothed pulley and timing belt can transmit significant torque and force. They can also transmit high speeds. This transmission is also reliable and requires minimal maintenance. It is also compact and requires minimal space. The timing belt can also follow a curved or convoluted shape.

[0025] According to one aspect, an omega-shaped drive unit includes a sprocket and rollers. The omega-shaped drive unit may include at least two rollers arranged along a chain or a timing belt, and at least one sprocket or at least one toothed pulley. Using the omega-shaped drive unit results in a reliable transmission that requires minimal maintenance.

[0026] According to one aspect, the protective barrier comprises multiple horizontal, interconnected segments guided within side frames. These segments can be interconnected via hinges and / or seals. The segments can be designed from steel, aluminum, wood, and / or plastic materials. The segments can be designed as sandwich structures and / or foam elements. In the event of a faulty segment, the interconnected segments can be disconnected, allowing for easy replacement of the faulty segment.

[0027] According to one aspect, the Ω-shaped drive unit is positioned in a section of the track adjacent to a curved or winding track. By actively applying an operating force at the upper region of the protective barrier, the barrier can be operated in both the reeling and deploying directions. The barrier can be reeled in and deployed even if one or more bottom panels are removed, such as after a collision. Drive components located in the upper region are less susceptible to weather influences.

[0028] In the proposed solution, a method for replacing a section of a protective barrier of a door is also described. The door includes a first track arranged on side frames on both sides of a protective barrier, wherein the protective barrier is configured to cover the door opening, and wherein the protective barrier includes a plurality of horizontal and interconnected segments connected to the side frames, and the door operating system includes: curved or spiral tracks arranged on both sides of the protective barrier for accommodating the protective barrier in a retracted open state; and at least one drive unit connected to the protective barrier to move the protective barrier from a deployed closed state to a retracted open state and from the retracted open state to a deployed closed state, wherein the protective barrier includes a first transmission element connected to the at least one drive unit, wherein the curved or spiral tracks each include a second transmission element, and wherein the first transmission element is an omega-shaped drive unit configured to engage with the second transmission element and to move the protective barrier along the second transmission element by operating the drive unit to move the protective barrier from the deployed closed state to the retracted open state and from the retracted open state to the deployed closed state, wherein the method includes the step of replacing at least one of the segments that is farthest from the curved or spiral tracks. This replacement of at least one of the segments farthest from the curved or winding track can be easily performed. Because the Ω-shaped drive unit is located in the segment closest to the curved or winding track, the protective barrier can be operated even if the segment farthest from the curved or winding track is removed from the protective barrier. The protective barrier is insensitive to, or less sensitive to, collisions. Therefore, even in the event of collision damage, such as from a forklift, the protective barrier remains operational even if the segment farthest from the curved or winding track is damaged. The interconnected segments connected to the side frames can also have a configuration other than horizontal.

[0029] Therefore, it should be understood that the invention disclosed herein is not limited to the specific components of the described devices or the steps of the described methods, as such devices and methods can vary. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not intended to be limiting. It should be noted that, as used in the specification and the appended claims, the articles "a", "said" and "the" are intended to indicate the presence of one or more elements, unless the context clearly dictates otherwise. Thus, for example, reference to "a unit" or "the unit" may include several devices, etc. In addition, the words "comprises", "comprising", "containing" and similar words do not exclude other elements or steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above objects as well as additional objects, features and advantages of the present invention will be more fully understood by referring to the following illustrative and non-limiting detailed description of exemplary embodiments of the present invention taken in conjunction with the accompanying drawings.

[0031] Figure 1 A schematic front view of a door operating system for a door according to the present invention is shown, wherein the protective barrier is in an unfolded closed state,

[0032] Figure 2 A schematic side view of a door operating system for a door according to the present invention is shown, wherein the protective barrier is in an unfolded closed state,

[0033] Figure 3 shows a schematic side view of a door operating system for a door according to the invention, wherein the protective barrier is in a rolled-up open state,

[0034] Figure 4 A schematic side view of a portion of a door operating system for a door according to the invention is shown, wherein the protective barrier is in an unfolded closed state,

[0035] Figure 5 A schematic side view of a portion of a door operating system for a door according to the invention is shown, wherein the protective barrier is in a partially rolled-up open state,

[0036] Figure 6 A schematic front view of a door operating system for a door according to the present invention is shown, wherein the protective barrier is in an unfolded closed state,

[0037] Figure 7 A schematic front view of a door operating system for a door according to the present invention is shown, wherein the protective barrier is in an unfolded closed state,

[0038] Figure 8 A schematic front view of a door operating system for a door according to the present invention is shown, wherein the protective barrier is in an unfolded closed state, and

[0039] Figure 9 A flow chart of the method according to the invention for replacing a section of a protective barrier of a door is shown. DETAILED DESCRIPTION

[0040] The present disclosure will now be described with reference to the accompanying drawings, in which are shown presently preferred example aspects and embodiments of the present disclosure. However, the present disclosure may be implemented in many different forms and should not be construed as limited to the embodiments disclosed herein. The disclosed aspects and embodiments are provided to fully convey the scope of the present disclosure to those skilled in the art.

[0041] Figure 1 A schematic front view of a door operating system 1 for a door 2 according to the present invention is shown, with a protective barrier 3 in an extended, closed position. The protective barrier 3 is configured to cover a door opening 18. First rails 9a, 9b are arranged on side frames 19a, 19b on either side of the protective barrier 3. Curved or spiral second rails 13a, 13b are arranged on either side of the protective barrier 3 to accommodate the protective barrier 3 in a retracted, open position. A drive unit 6 is connected to the protective barrier 3 for moving the protective barrier 3 from the extended, closed position to the retracted, open position, and vice versa. Omega-shaped drive units 11a, 11b are connected to the drive unit 6 via a drive shaft 5, a gearbox 12, and a torque transmission unit 10. The drive unit 6 is positioned a distance from the omega-shaped drive units 11a, 11b. The drive unit 6 is located on one of the side frames 19a, 19b. Drive unit 6 is arranged outside the area or space between curved or spiral second rails 13a, 13b, and torque transfer unit 10 extends from drive unit 6 into the area or space between curved or spiral second rails 13a, 13b. Protective barrier 3 includes a plurality of horizontal, interconnected segments 4 guided within first rails 9a, 9b. Segments 4 may be interconnected via hinges 7 and / or seals 8. Ω-shaped drive units 11a, 11b are arranged near one of the segments 4 near the curved or spiral second rails 13a, 13b. Therefore, Ω-shaped drive units 11a, 11b may be arranged near or on one of the segments 4 near the curved or spiral second rails 13a, 13b.

[0042] The transmission box 12 includes a sprocket and a chain and is configured to distribute torque and rotational motion from the drive unit 6 to the omega-shaped drive units 11a, 11b via the torque transmission unit 10 and the drive shaft 5. The transmission box 12 is arranged between the omega-shaped drive units 11a, 11b and on the protective barrier 3.

[0043] The torque transmission unit 10 may be a telescopic transmission shaft or a flexible shaft, which can compensate for distance and angle changes between the transmission housing 12 and the drive unit 6 during opening and closing of the protective barrier 3 .

[0044] Each of the curved or spiral second tracks 13a, 13b includes a second transmission element 14a, 14b. The Ω-shaped drive units 11a, 11b are configured to engage with the second transmission elements 14a, 14b. By operating the drive unit 6, the protective barrier 3 is moved along the second transmission elements 14a, 14b, thereby moving the protective barrier 3 from the deployed closed state to the retracted open state and vice versa. The protective barrier 3 can be operated in both the opening and closing directions. In the deployed state, the protective barrier 3 covers the door opening 18, preventing entry or exit through the door opening 18.

[0045] Figure 2 A schematic side view of a door operating system 1 for a door 2 according to the invention is shown, wherein the protective barrier 3 is in the unfolded closed state. The curved or spiral second rails 13a, 13b have a curved or spiral shape. The second transmission elements 14a, 14b also have a curved or spiral shape, as they are arranged on the curved or spiral second rails 13a, 13b. The curved or spiral shape of the roller or a part of the roller enables a continuous reduction in the rolling radius. The drive unit 6 ( Figure 1 ) is connected to the torque transmission unit 10 at the center of the second track 13b. The torque transmission unit 10 extends at angles α and β relative to the horizontal plane. Angle α is Figure 1 In the public.

[0046] Figure 3 A schematic side view of a door operating system 1 for a door 2 according to the invention is shown, wherein the protective barrier 3 is in a rolled-in open state. In the open position of the door 2, the protective barrier 3 has been rolled up and pulled away from the door opening 18 and can be entered and exited through the door opening 18. Figure 3 The protective barrier 3 in FIG. 1 has been pulled up and rolled up on the curved or spiral second rail 13 a , 13 b of a curved or spiral shape. Figure 3 The door 2 in the embodiment has a vertical configuration. When the door 2 is opened, pulling up or rolling up the protective barrier 3 in a spiral form requires minimal space above the door lintel 15.

[0047] Figure 4A schematic side view of a portion of a door operating system 1 for a door 2 according to the invention is shown, wherein the protective barrier 3 is in the unfolded closed state. The omega-shaped drive units 11a, 11b comprise a sprocket 16, and the second transmission element 14a, 14b is a chain 20. Alternatively, the omega-shaped drive units 11a, 11b may comprise a toothed pulley 16', and the second transmission element 14a, 14b is a timing belt 20'. Figure 4 In the embodiment, the Ω-shaped drive units 11a and 11b are Ω-shaped drive units 15 including a sprocket 16 and rollers 17a and 17b. The Ω-shaped drive unit 15 may include at least two rollers 17a and 17b arranged along a chain 20 or a timing belt 20' and at least one sprocket 16 or at least one toothed pulley 16'.

[0048] Figure 5 A schematic side view of a portion of a door operating system 1 for a door 2 according to the invention is shown, wherein the protective barrier 3 is in a partially rolled-up state. Figure 1 ) has caused the sprocket 16 or toothed pulley 16' to rotate, so that the omega drive unit 15 has traveled along the chain 20 or timing belt 20'. Since the omega drive unit 15 is connected to the protective barrier 3, a part of the protective barrier 3 has also been pulled into the curved or spiral second track 13a, 13b of the curved or spiral shape.

[0049] Figure 6 A schematic front view of a door operating system 1 for a door 2 according to the present invention is shown, with the protective barrier 3 in the deployed, closed position. Two drive units 6 are arranged on the protective barrier 3. The drive units 6 are directly connected to the Ω-shaped drive units 11a and 11b. The drive units 6 can be electric motors powered by batteries 21, which are also arranged on the protective barrier 3. When the protective barrier 3 is retracted and deployed, the drive units 6 follow the movement of the protective barrier 3. The battery 21 also follows the movement of the protective barrier 3. The power supplied by the batteries can be 50V or higher.

[0050] Figure 7 A schematic front view of a door operating system 1 for a door 2 according to the present invention is shown, with the protective barrier 3 in an unfolded and closed position. A drive unit 6 is positioned on the protective barrier 3. Drive unit 6 is connected to Ω-shaped drive units 11a and 11b via a drive shaft 5. Drive unit 6 may be an electric motor powered by a battery 21, which is also positioned on the protective barrier 3. When the protective barrier 3 is unfolded and retracted, drive unit 6 follows the movement of the protective barrier 3. The battery 21 also follows the movement of the protective barrier 3.

[0051] Figure 8A schematic front view of a door operating system 1 for a door 2 according to the present invention is shown, with the protective barrier 3 in the deployed, closed state. Curved or spiral second rails 13a, 13b are arranged on either side of the protective barrier 3 to accommodate the protective barrier 3 in the retracted, open state. A drive unit 6 is connected to the protective barrier 3 to move the protective barrier 3 from the deployed, closed state to the retracted, open state, and vice versa. Omega-shaped drive units 11a, 11b are connected to the drive unit 6 via a drive shaft 5, a transmission box 12, and a torque transmission unit 10. The drive unit 6 is positioned a distance from the omega-shaped drive units 11a, 11b. The drive unit 6 is positioned on one of the side frames 19a, 19b. The drive unit 6 is positioned in the area or space between the curved or spiral second rails 13a, 13b. The transmission box 12 includes a sprocket and a chain and is configured to distribute torque and rotational motion from the drive unit 6 to the omega-shaped drive units 11a, 11b via the torque transmission unit 10 and the drive shaft 5. The transmission box 12 is arranged between the omega-shaped drive units 11a, 11b and on the protective barrier 3.

[0052] Figure 9 A flow chart of a method according to the invention for replacing a section of a protective barrier 3 of a door 2 is disclosed. Figures 1 to 9 , wherein the protective barrier 3 is configured to cover the door opening 18 and wherein the protective barrier 3 comprises a plurality of horizontal and interconnected sections 4 connected to the side frames 19a, 19b. The door operating system 1 comprises: curved or spiral second tracks 13a, 13b, which are arranged on both sides of the protective barrier 3 for accommodating the protective barrier 3 in a rolled-up open state; and at least one drive unit 6, which is connected to the protective barrier 3 to move the protective barrier 3 from the deployed closed state to the rolled-up open state. The protective barrier 3 is adapted to move from the rolled-in open state to the unfolded closed state and from the rolled-in open state to the unfolded closed state, wherein the protective barrier 3 includes an Ω-shaped drive unit 11a, 11b connected to at least one drive unit 6, wherein the curved or spiral second track 13a, 13b each includes a second transmission element 14a, 14b, and wherein the Ω-shaped drive unit 11a, 11b is configured to engage with the second transmission elements 14a, 14b and to move the protective barrier 3 along the second transmission elements 14a, 14b by operating the drive unit 6 so as to move the protective barrier 3 from the unfolded closed state to the rolled-in open state and from the rolled-in open state to the unfolded closed state.

[0053] The method comprises a step S101 of replacing at least one section of the segment 4 that is furthest from the curved or spiral second track 13a, 13b.

[0054] Those skilled in the art will recognize that the present invention is not limited to the preferred embodiments described above. Those skilled in the art will further recognize that modifications and variations are possible within the scope of the appended claims. In addition, all aspects and embodiments of the present invention may be combined with other aspects and embodiments of the present invention. Furthermore, by studying the drawings, the disclosure, and the appended claims, those skilled in the art will understand and implement variations of the disclosed embodiments in practicing the claimed invention.

Claims

1. A door operating system (1) for a door (2), the door (2) comprising a protective barrier (3) and first rails (9a, 9b), the protective barrier (3) being configured to be in a rolled-up open state and configured to cover a door opening (18) in an unfolded closed state, the first rails (9a, 9b) being arranged on side frames (19a, 19b) on both sides of the protective barrier (3), the door operating system (1) comprising: a curved or spiral second track (13a, 13b) arranged on both sides of the protective barrier (3) for accommodating the protective barrier (3) in the rolled-in open state; as well as at least one drive unit (6) connected to the protective barrier (3) for moving the protective barrier (3) from the deployed closed state to the retracted open state and from the retracted open state to the deployed closed state, wherein the protective barrier (3) comprises a first transmission element connected to the at least one drive unit (6), wherein the curved or spiral second tracks (13a, 13b) each comprise a second transmission element (14a, 14b), and The first transmission element is an Ω-shaped drive unit (11a, 11b), the Ω-shaped drive unit (11a, 11b) is configured to engage with the second transmission element (14a, 14b), and the protective barrier (3) is moved along the second transmission element (14a, 14b) by operating the at least one drive unit (6), so as to move the protective barrier (3) from the unfolded closed state to the reeled open state and from the reeled open state to the unfolded closed state.

2. The door operating system (1) according to claim 1, wherein The second track (13a, 13b) has a curved or spiral shape.

3. The door operating system (1) according to claim 1 or 2, wherein: The Ω-shaped drive unit (11a, 11b) is connected to the drive unit (6) via a torque transmission unit (10).

4. The door operating system (1) according to claim 3, wherein: A transmission box (12) is arranged between the torque transmission unit (10) and the Ω-shaped drive unit (11a, 11b), and the transmission box (12) is configured to distribute torque and rotational motion from the drive unit (6) to the Ω-shaped drive unit (11a, 11b).

5. The door operating system (1) according to claim 3, wherein: The torque transmission unit (10) is a telescopic transmission shaft.

6. The door operating system (1) according to claim 3, wherein: The torque transmission unit (10) is a flexible shaft.

7. The door operating system (1) according to claim 6, wherein: The at least one drive unit (6) is arranged on the protective barrier (3).

8. The door operating system (1) according to claim 1 or 2, wherein: The at least one drive unit (6) is arranged at one of the side frames (19a, 19b).

9. The door operating system (1) according to claim 1, wherein: The Ω-shaped drive unit (11a, 11b) comprises a sprocket (16), and the second transmission element (14a, 14b) is a chain.

10. The door operating system (1) according to claim 1, wherein: The Ω-shaped drive unit (11a, 11b) comprises a toothed pulley, and the second transmission element (14a, 14b) is a timing belt.

11. The door operating system (1) according to claim 9 or 10, wherein: The Ω-shaped drive unit (11a, 11b) comprises rollers (17a, 17b) and a sprocket (16) or a toothed pulley (16').

12. The door operating system (1) according to claim 1 or 2, wherein: The protective barrier (3) comprises a plurality of horizontal and interconnected sections (4) guided in the side frames (19a, 19b).

13. The door operating system (1) according to claim 12, wherein: The Ω-shaped drive unit (11a, 11b) is arranged in a section of the section (4) close to the curved or spiral second track (13a, 13b).

14. A method for replacing a segment (4) of a protective barrier (3) of a door (2) according to any one of the preceding claims, the door (2) comprising first rails (9a, 9b) arranged on side frames (19a, 19b) on both sides of the protective barrier (3), wherein The protective barrier (3) is configured to be in a rolled-open state and to cover a door opening (18) in a rolled-closed state, and wherein the protective barrier (3) comprises a plurality of horizontal and interconnected segments (4) connected to the side frames (19a, 19b), the door operating system (1) comprising: a curved or spiral second track (13a, 13b) arranged on both sides of the protective barrier (3) for accommodating the protective barrier (3) in the rolled-in open state; and at least one drive unit (6) connected to the protective barrier (3) for moving the protective barrier (3) from the deployed closed state to the retracted open state and from the retracted open state to the deployed closed state, wherein the protective barrier (3) comprises a first transmission element connected to the at least one drive unit (6), wherein the curved or spiral second tracks (13a, 13b) each comprise a second transmission element (14a, 14b), and The first transmission element is an Ω-shaped drive unit (11a, 11b), the Ω-shaped drive unit (11a, 11b) is configured to engage with the second transmission element (14a, 14b), and the protective barrier (3) is moved along the second transmission element (14a, 14b) by operating the at least one drive unit (6) so as to move the protective barrier (3) from the unfolded closed state to the reeled open state and from the reeled open state to the unfolded closed state, wherein the method comprises: A step (S101) of replacing at least one section of the section (4) that is farthest from the second track (13a, 13b).

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